If you want your AssaultCube environment to differ from the default, you need to
create a local.yaml file with your changes (see Configuration below). Once you
are satisfied with your config simply run

Configuration

The default configuration will launch Assaultcube with a maximum of 20 players,
"AssaultCube Server powered by juju" as title and with the default ports
(28763/udp, 28764/udp).

If you wish to change those defaults create a local.yaml file with your
selections.

For example, if you wish to run the server attached to the ports 9998 and 9999,
and with the title "Welcome to my AC server", your local.yaml file should look
like this:

assaultcube:
port: 9998
title: Welcome to my AC server

The configuration vars accepted are:

max-players: Maximum players allowed on the server
title: The server description that shows in the server list
motd: Message of the day displayed to users in the server list
port: Port for which AssaultCube runs upon
passwd: Password for the server's clients.
masterserver: Master server